This study provides an answer to the question of whether polymer properties can be modulated by the design of branching points.
这项研究回答了聚合物性质是否可以通过分支点设计来调节的问题。
Soluble Congeners of Prior Insoluble Shape‐Persistent Imine Cages
作者:Mattes Holsten、Sarah Feierabend、Sven M. Elbert、Frank Rominger、Thomas Oeser、Michael Mastalerz
DOI:10.1002/chem.202100666
日期:2021.6.25
One of the most applied reaction types to synthesize shape-persistent organic cage compounds is the iminecondensationreaction and it is assumed that the formed cages are thermodynamically controlled products due to the reversibility of the iminecondensation. However, most of the synthesized imine cages reported are formed as precipitate from the reaction mixture and therefore rather may be kinetically
film morphology, transient photoconductivity, mobility, crystalline structure, and surface free energy. Herein, we demonstrate that the PCE of the crystalline polymer (PffBT4T):PCBM with 5 wt% TP is slightly improved (maximum: 9.41%, average: 8.96 ± 0.23%) without the use of a solvent additive, along with much enhanced long-term stability. This is presumably due to the presence of the TP sheet that acts
Synthesis of a Rigid<i>C</i><sub>3<i>v</i></sub>-Symmetric Tris-salicylaldehyde as a Precursor for a Highly Porous Molecular Cube
作者:Sven M. Elbert、Frank Rominger、Michael Mastalerz
DOI:10.1002/chem.201404829
日期:2014.12.8
versatile precursor for porousmolecular materials, as demonstrated in the [4+4] condensation reaction with a triptycene triamine to form a molecular shape‐persistent porouscube. The amorphous material of the molecularporouscube shows a very high surface area of 1014 m2 g−1 (BET model) and a high uptake of CO2 (18.2 wt % at 273 K and 1 bar). Furthermore, during the multistep synthesis of the tris‐salicylaldehyde
提出了基于三萜的C 3 v对称三水杨醛合成方法的发展。三水杨醛是多孔分子材料的多用途前体,如与三茂三胺的[4 + 4]缩合反应形成了分子形状持久的多孔立方体。分子多孔立方体的无定形材料显示出非常高的表面积,即1014 m 2 g -1(BET模型)和高的CO 2吸收率(在273 K和1 bar下为18.2 wt%)。此外,在三水杨醛醛前体的多步合成过程中,在狄尔斯-阿尔德实验中,发现在1,4-和1,4,5,8-位的蒽中相对罕见(两倍)的芳烃加成蒽X射线结构分析证明了该反应。
Design, Synthesis, and Anticancer Activity of Triptycene–Peptide Hybrids that Induce Paraptotic Cell Death in Cancer Cells
We report on the design and synthesis of triptycene–peptide hybrids (TPHs), 5, syn-6, and anti-6, which are conjugates of a triptycene core unit with two or three cationic KKKGG peptides (K: lysine and G: glycine) through a C8 alkyl chain. It was discovered that syn-6 and anti-6 induce paraptosis, a type of programmed cell death (PCD), in Jurkat cells (leukemia T-lymphocytes). Mechanistic studies indicate that these TPHs induce the transfer of Ca2+ from the endoplasmic reticulum (ER) to mitochondria, a loss of mitochondrial membrane potential (ΔΨm), tethering of the ER and mitochondria, and cytoplasmic vacuolization in the paraptosis processes.